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Lab · Sector Dispersion

Breadth vs the sector.

Most screens show the sector's price. These show what its members are doing underneath — is the move broad, or carried by a few mega-caps? Median constituent vs the index, advancers vs decliners, how many names beat the index, and a cumulative advance/decline line that tends to turn before price. 40 ETFs & index cuts · closes through 2026-07-28.

What changed below the surface · 21-day

Where the constituents' advance/decline is pulling away from the ETF's price — the early read, before the headline reflects it.

Improving — breadth rising under flat/soft price

Weakening — breadth falling under firm price

Closelook indices

RUBIN 124/125 · 99% wt
Rubin Build-Out 100 (EW)
-6.65% med -0.09pp 6 / 117
HALO 99/100 · 99% wt
HALO Growth 100 (EW)
+0.47% med +0.56pp 63 / 36
AEI 34/34
Agentic Ecosystem Index (EW)
-0.89% med +0.41pp 14 / 19
EUROAI 61/65 · 94% wt
Euro-AI Sovereign 50 (EW)
-1.30% med +0.94pp 29 / 32
AW40 38/40 · 95% wt
Agentic Winners 40 (EW)
+2.20% med +0.66pp 30 / 8

S&P 500 sectors

XLK 72/72
Technology Select Sector
-1.84% med +1.35pp 34 / 38
XLF 76/76
Financial Select Sector
+1.27% med +0.47pp 63 / 13
XLV 59/59
Health Care Select Sector
+2.36% med +0.30pp 58 / 1
XLE 21/21
Energy Select Sector
-1.35% med +0.07pp 1 / 20
XLI 80/80
Industrial Select Sector
-0.39% med +0.95pp 51 / 29
XLP 36/36
Consumer Staples Select Sector
+1.99% med -0.19pp 33 / 3
XLY 48/48
Consumer Discretionary Select Sector
+1.48% med +0.89pp 40 / 8
XLU 31/31
Utilities Select Sector
-0.35% med +0.48pp 16 / 14
XLB 26/26
Materials Select Sector
+1.85% med -0.36pp 22 / 4
XLRE 31/31
Real Estate Select Sector
+0.55% med +0.79pp 21 / 10
XLC 23/23
Communication Services Select Sector
+1.87% med -0.02pp 20 / 3

Nasdaq-100 cuts

QTEC 45/45
First Trust Nasdaq-100 Technology
-1.80% med +1.20pp 20 / 25
QQXT 56/56
First Trust Nasdaq-100 Ex-Technology
+1.70% med +0.40pp 42 / 14
QQEW 49/49
First Trust Nasdaq-100 Equal Weight
+0.43% med +1.58pp 35 / 14
QTOP 31/31
iShares Nasdaq-100 Top 30
-1.58% med +2.10pp 17 / 14

Tech & thematics

IGV 110/110
iShares Expanded Tech-Software
+0.96% med +2.11pp 81 / 27
SMH 25/25
VanEck Semiconductor
-3.45% med -0.79pp 3 / 22
XSD 43/43
SPDR S&P Semiconductor (EW)
-4.33% med -0.54pp 7 / 36
AIQ 66/66
Global X AI & Technology
-1.82% med +2.74pp 39 / 27
CIBR 41/41
First Trust Nasdaq Cybersecurity
+0.20% med +0.68pp 24 / 17
DTCR 20/20
Global X Data Center & Digital Infra
-1.73% med -0.12pp 6 / 14
WTAI 47/48 · 77% wt
WisdomTree AI & Innovation
-4.43% med +4.20pp 22 / 24
QTUM 62/63 · 76% wt
Defiance Quantum
-2.81% med +0.96pp 21 / 41
ARKK 42/42
ARK Innovation
-0.11% med +0.23pp 22 / 20

Global

IXN 87/124 · 81% wt
iShares Global Tech
-2.08% med +2.33pp 45 / 42

Computed across the constituents we cover in our data lake (coverage shown per card). A/D line = cumulative daily advancers minus decliners. Decision-support, not investment advice.